Accession Number:

AD1116457

Title:

Global Gradient-Based Phase Unwrapping Algorithm for Increased Performance in Wavefront Sensing

Descriptive Note:

Technical Report,01 Sep 2018,26 Mar 2020

Corporate Author:

AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH WRIGHT-PATTERSON AFB United States

Personal Author(s):

Report Date:

2020-03-01

Pagination or Media Count:

72.0

Abstract:

As the reliance on satellite data for military and commercial use increases, more effort must be exerted to protect our space-based assets. In order to help increase our space domain awareness SDA, new approaches to ground-based space surveillance via wavefront sensing must be adopted. Improving phase-unwrapping algorithms in order to assist in phase retrieval methods is one way of increasing the performance in current adaptive optics AO systems. This thesis proposes a new phase-unwrapping algorithm that uses a global, gradient-based technique to more rapidly identify and correct for areas of phase wrapping during particular phase retrieval methods. This is beneficial in regard to the speed and accuracy within which a wrapped phase estimate is unwrapped using a new algorithm, and doing so without having to change current AO systems or physical setups.

Subject Categories:

  • Optics
  • Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE